The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2024
Filed:
Nov. 14, 2019
Lotte Chemical Corporation, Seoul, KR;
Joon Keun Min, Daejeon, KR;
Eun Hye Shin, Daejeon, KR;
Rai Ha Lee, Daejeon, KR;
Hae In Lee, Daejeon, KR;
Su Jeong Jeong, Daejeon, KR;
Byung Hun Chae, Daejeon, KR;
LOTTE CHEMICAL CORPORATION, Seoul, KR;
Abstract
The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing to the production of rubbery polypropylene are co-supported, and a method for producing a polypropylene resin using same. By using the supported catalyst, according to the present invention, it is possible to produce, by a single step of propylene polymerization, a polypropylene resin in which crystalline polypropylene and rubbery polypropylene are simultaneously formed.